The profile angle correction technique of rack cutter to lower the herringbone gear noise

Sunderland gear cutter machine is suitable for finish machining of herringbone gear with small or without hollow groove which is designed by small size. But profile angle error for rack cutter will cause profile error and pitch deviation of gear, and cause high-frequency noise. The profile error of two side edges of rack cutter should be paired according to the principle of meshing surface. By analyzing the wire cutting system of Sunderland rack cutter for herringbone gear, the mathematical model of error prediction for the profile angle error for rack cutter is founded; the profile angle correction technique and the examples for rack cutter are proposed based on the methods of prediction and detection.